Résultats de la recherche
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Exchange of wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for conservation
Albatrosses and Petrels to effect an improved conservation status for the wandering albatrosses of the two ... albatrosses of the two island groups form a metapopulation that ideally should be conserved as a single unit ... wandering albatrosses Diomedea exulans between the Prince Edward and Crozet Islands: implications for ... only one fledgling from Marion Island has been recorded breeding on Possession. The wandering ...
Meeting Document : WG-EMM-03/41 : Auteur(s): J. Cooper (South Africa) and H. Weimerskirch (France)
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Revised research plan for toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2011/12
2010/11 fishing season with the aims of providing the data required for assessments of the population ... . An approximate stock biomass level of Dissostichus spp. in the survey area (SSRUs B and C in Division ... medial estimates using simple Petersen (1583 and 2751 ton) were similar to those under the two scenarios ... small numbers of recapture. The estimations using other two methods were a half to a quarter smaller ...
Meeting Document : WG-FSA-11/15 Rev. 1 : Auteur(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Approaches to data collection and analysis for detecting and quantifying functional overlap at the scale of the individual vessell
Groups. Specifically, these discussions centre around two key issues: a) whether there are potential ... , and b) how krill acoustic surveys and transects could also be used to provide data for wider ecosystem ... , considers what types of scientific questions can be answered with the two approaches to data collection and ... Title: Approaches to data collection and analysis for detecting and quantifying functional overlap at ...
Meeting Document : WG-EMM-18/33 : Auteur(s): M. Söffker and N. Gasco
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
scattering models and empirically derived distributions of animal sizes, a technique is developed for ... echograms included dense swarms with virtually equivalent Sv at the two frequencies. The ability for this ... method to delineate salps from krill is highly dependent on the degree to which the two CDF's differ ... (Euphausia superba and Salpa thompsoni) at 120 kHz and 200 kHz. Concurrently, a two meter Isaacs-Kidd ...
Meeting Document : WG-Krill-94/12 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)
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Committee for Environmental Protection: 2016 Annual Report to the Scientific Committee of CCAMLR
meeting. The terms of reference for the workshop focused primarily on two areas of overlapping interest ... Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... both. In order to avoid duplicate reporting between the two committees, and following discussions ... -CAMLR observer to the CEP. An agreed standard reporting template, to be routinely followed by both ...
Meeting Document : SC-CAMLR-XXXV/BG/09 : Auteur(s): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
Abstract: I made two sensitive runs of CASAL catch at length models (LENGTH_MODEL) for stock ... between the two models were set as follows: year class strength (YCS) was fixed; parameters of ALK were ... years 2004/05 to 2012/13 following the recommendation during the last WG-SAM meeting. The two models are ... status assessments of Dissostichus eleginoides in research block 5843a_1 in Division 58.4.3a for the ...
Meeting Document : WG-FSA-14/22 : Auteur(s): K. Taki (Japan)
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Fitting a von Bertalanffy growth model to length-at-age data accounting for length-dependent fishing selectivity and length-stratified sub-sampling of length frequency samples
both age and measure for length there are two potential response-biased sampling processes when length ... process involving a particular gear, and (ii) the method of on-deck sub-sampling fish for ageing from the ... used to estimate the von Bertalanffy parameters for simulated and real data on the growth of the ... parameter estimation has been studied for linear and generalized linear, and linear mixed models but since ...
Meeting Document : WG-FSA-SAM-05/13 : Auteur(s): S.G. Candy (Australia)
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Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 2 – outcomes from the application of the risk assessment framework for distributing the krill trigger level in Area 48
for distributing the krill trigger level in Area 48, which was described in Part 1 of this work (WG ... -FSA-16/47). This second part has two additional components of work: (i) results of the analyses using ... , including consideration of the matters raised by WG-EMM in 2016. The framework presented in Part 1 is shown ... here provide the input needed for the review of CM51-07 and the means by which further scenarios may be ...
Meeting Document : WG-FSA-16/48 Rev. 1 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)
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The annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari for 2015
of 2014 and two and a half times that of the long-term average for the survey. The C. gunnari catch ... this year meant that 333 sets of otoliths were collected for L. squamifrons, 499 for C. rhinoceratus ... 2015, with the completion of 163 stations, an additional five stations compared with previous surveys ... sub-division into two boxes, one having 15 and the second 10 randomly allocated stations. In addition ...
Meeting Document : WG-FSA-15/11 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Marine Ecosystem Assessment for the Southern Ocean (MEASO)
held in Hobart in early April 2018 (http://www.measo2018.aq/). The conference provided an opportunity ... researchers. For this survey, an indication of where and when national research programmes have conducted ... from the field programmes are also being summarised, based on an open, international survey of ... Abstract: A first Marine Ecosystem Assessment for the Southern Ocean (MEASO) is under development ...
Meeting Document : SC-CAMLR-XXXVII/BG/22 : Auteur(s): A. Constable, J. Melbourne-Thomas, R. Trebilco and M. Brasier